<!DOCTYPE html>
<HTML>
<HEAD>
    <TITLE> ZTREE DEMO - beforeDrag / onDrag / beforeDrop / onDrop</TITLE>
    <meta content="text/html; charset=UTF-8" http-equiv="content-type">
    <link href="../../../css/demo.css" rel="stylesheet" type="text/css">
    <link href="../../../css/zTreeStyle/zTreeStyle.css" rel="stylesheet" type="text/css">
    <script src="../../../js/jquery-1.4.4.min.js" type="text/javascript"></script>
    <script src="../../../js/jquery.ztree.core.js" type="text/javascript"></script>
    <script src="../../../js/jquery.ztree.excheck.js" type="text/javascript"></script>
    <script src="../../../js/jquery.ztree.exedit.js" type="text/javascript"></script>
    <SCRIPT type="text/javascript">
        <!--
        var setting = {
            edit: {
                drag: {
                    autoExpandTrigger: true,
                    prev: dropPrev,
                    inner: dropInner,
                    next: dropNext
                },
                enable: true,
                showRemoveBtn: false,
                showRenameBtn: false
            },
            data: {
                simpleData: {
                    enable: true
                }
            },
            callback: {
                beforeDrag: beforeDrag,
                beforeDrop: beforeDrop,
                beforeDragOpen: beforeDragOpen,
                onDrag: onDrag,
                onDrop: onDrop,
                onExpand: onExpand
            }
        };

        var zNodes = [
            {id: 1, pId: 0, name: "随意拖拽 1", open: true},
            {id: 11, pId: 1, name: "随意拖拽 1-1"},
            {id: 12, pId: 1, name: "随意拖拽 1-2"},
            {id: 121, pId: 12, name: "随意拖拽 1-2-1"},
            {id: 122, pId: 12, name: "随意拖拽 1-2-2"},
            {id: 123, pId: 12, name: "随意拖拽 1-2-3"},
            {id: 13, pId: 1, name: "禁止拖拽 1-3", open: true, drag: false},
            {id: 131, pId: 13, name: "禁止拖拽 1-3-1", drag: false},
            {id: 132, pId: 13, name: "禁止拖拽 1-3-2", drag: false},
            {id: 132, pId: 13, name: "禁止拖拽 1-3-3", drag: false},
            {id: 2, pId: 0, name: "禁止子节点移走 2", open: true, childOuter: false},
            {id: 21, pId: 2, name: "我不想成为父节点 2-1", dropInner: false},
            {id: 22, pId: 2, name: "我不要成为根节点 2-2", dropRoot: false},
            {id: 23, pId: 2, name: "拖拽试试看 2-3"},
            {id: 3, pId: 0, name: "禁止子节点排序/增加 3", open: true, childOrder: false, dropInner: false},
            {id: 31, pId: 3, name: "随意拖拽 3-1"},
            {id: 32, pId: 3, name: "随意拖拽 3-2"},
            {id: 33, pId: 3, name: "随意拖拽 3-3"}
        ];

        function dropPrev(treeId, nodes, targetNode) {
            var pNode = targetNode.getParentNode();
            if (pNode && pNode.dropInner === false) {
                return false;
            } else {
                for (var i = 0, l = curDragNodes.length; i < l; i++) {
                    var curPNode = curDragNodes[i].getParentNode();
                    if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
                        return false;
                    }
                }
            }
            return true;
        }

        function dropInner(treeId, nodes, targetNode) {
            if (targetNode && targetNode.dropInner === false) {
                return false;
            } else {
                for (var i = 0, l = curDragNodes.length; i < l; i++) {
                    if (!targetNode && curDragNodes[i].dropRoot === false) {
                        return false;
                    } else if (curDragNodes[i].parentTId && curDragNodes[i].getParentNode() !== targetNode && curDragNodes[i].getParentNode().childOuter === false) {
                        return false;
                    }
                }
            }
            return true;
        }

        function dropNext(treeId, nodes, targetNode) {
            var pNode = targetNode.getParentNode();
            if (pNode && pNode.dropInner === false) {
                return false;
            } else {
                for (var i = 0, l = curDragNodes.length; i < l; i++) {
                    var curPNode = curDragNodes[i].getParentNode();
                    if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
                        return false;
                    }
                }
            }
            return true;
        }

        var log, className = "dark", curDragNodes, autoExpandNode;

        function beforeDrag(treeId, treeNodes) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " beforeDrag ]&nbsp;&nbsp;&nbsp;&nbsp; drag: " + treeNodes.length + " nodes.");
            for (var i = 0, l = treeNodes.length; i < l; i++) {
                if (treeNodes[i].drag === false) {
                    curDragNodes = null;
                    return false;
                } else if (treeNodes[i].parentTId && treeNodes[i].getParentNode().childDrag === false) {
                    curDragNodes = null;
                    return false;
                }
            }
            curDragNodes = treeNodes;
            return true;
        }

        function beforeDragOpen(treeId, treeNode) {
            autoExpandNode = treeNode;
            return true;
        }

        function beforeDrop(treeId, treeNodes, targetNode, moveType, isCopy) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " beforeDrop ]&nbsp;&nbsp;&nbsp;&nbsp; moveType:" + moveType);
            showLog("target: " + (targetNode ? targetNode.name : "root") + "  -- is " + (isCopy == null ? "cancel" : isCopy ? "copy" : "move"));
            return true;
        }

        function onDrag(event, treeId, treeNodes) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " onDrag ]&nbsp;&nbsp;&nbsp;&nbsp; drag: " + treeNodes.length + " nodes.");
        }

        function onDrop(event, treeId, treeNodes, targetNode, moveType, isCopy) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " onDrop ]&nbsp;&nbsp;&nbsp;&nbsp; moveType:" + moveType);
            showLog("target: " + (targetNode ? targetNode.name : "root") + "  -- is " + (isCopy == null ? "cancel" : isCopy ? "copy" : "move"))
        }

        function onExpand(event, treeId, treeNode) {
            if (treeNode === autoExpandNode) {
                className = (className === "dark" ? "" : "dark");
                showLog("[ " + getTime() + " onExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
            }
        }

        function showLog(str) {
            if (!log) log = $("#log");
            log.append("<li class='" + className + "'>" + str + "</li>");
            if (log.children("li").length > 8) {
                log.get(0).removeChild(log.children("li")[0]);
            }
        }

        function getTime() {
            var now = new Date(),
                h = now.getHours(),
                m = now.getMinutes(),
                s = now.getSeconds(),
                ms = now.getMilliseconds();
            return (h + ":" + m + ":" + s + " " + ms);
        }

        function setTrigger() {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo");
            zTree.setting.edit.drag.autoExpandTrigger = $("#callbackTrigger").attr("checked");
        }

        $(document).ready(function () {
            $.fn.zTree.init($("#treeDemo"), setting, zNodes);
            $("#callbackTrigger").bind("change", {}, setTrigger);
        });
        //-->
    </SCRIPT>
</HEAD>

<BODY>
<h1>拖拽节点高级控制</h1>
<h6>[ 文件路径: exedit/drag_super.html ]</h6>
<div class="content_wrap">
    <div class="zTreeDemoBackground left">
        <ul class="ztree" id="treeDemo"></ul>
    </div>
    <div class="right">
        <ul class="info">
            <li class="title"><h2>1、beforeDrag / onDrag<br/>&nbsp;&nbsp;beforeDrop / onDrop 事件回调函数控制</h2>
                <ul class="list">
                    <li>此 Demo 演示合理利用配置参数实现更加灵活、更加合理的拖拽规则，操作时可以对比"基本控制"的例子</li>
                    <li>此 Demo 默认 允许复制 / 移动</li>
                    <li class="highlight_red">此 Demo 中拖拽相对位置设置为 function，可以根据节点动态设定，从而可以放弃使用 beforeDrop 回调函数，拖拽时的效果会更好
                    </li>
                    <li><p><span class="highlight_red">在对这些灵活的配置熟悉以后，相信你能够做出更加合理的拖拽规则！</span><br/>
                        &nbsp;&nbsp;&nbsp;&nbsp;<input checked id="callbackTrigger" type="checkbox"/> 拖拽节点时自动展开父节点是否触发
                        callback<br/>
                        drag / drop log:<br/>
                        <ul class="log" id="log"></ul>
                        </p></li>
                </ul>
            </li>
            <li class="title"><h2>2、setting 配置信息说明</h2>
                <ul class="list">
                    <li>同 "拖拽 节点 基本控制"</li>
                </ul>
            </li>
            <li class="title"><h2>3、treeNode 节点数据说明</h2>
                <ul class="list">
                    <li>同 "拖拽 节点 基本控制"</li>
                </ul>
            </li>
        </ul>
    </div>
</div>
</BODY>
</HTML>